Crystal Structure and Vibrational Properties of a Sodium Oxoferrate(II) Hydroxide, Na5[FeO3][OH]

• Published in: Zeitschrift für anorganische und allgemeine Chemie (1950) Vol. 638; no. 12-13; pp. 2087 - 2092
• Main Authors: Gheorghe, Dana E., Litvinchuk, Alexander P., Möller, Angela
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 01.10.2012; WILEY‐VCH Verlag
• Subjects: Crystal structure; Ferrates; Hydroxides; Iron; Lattice dynamics
• ISSN: 0044-2313; 1521-3749
• DOI: 10.1002/zaac.201200178

Na5[FeO3][OH] has been obtained from a redox reaction between iron metal and CdO in the presence of Na2O and NaOH at 450 °C (5 d) as red crystals. The structure has been determined from single crystal data (Pnma, Z = 8, a = 990.94(7) pm, b = 1016.41(7) pm, c = 1185.35(8) pm, wR2 = 0.050) and evaluated by MAPLE calculations. In addition, we present experimental single‐crystal IR and Raman spectroscopic data to discuss aspects of the isolated [FeO3]4– complexes and non‐coordinating hydroxide in comparison with the respective cobalt compounds. Additional ab‐initio lattice dynamic calculations are included for comparison.